[381] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. B 
a few species of marine insects that are frequently met with under 
stones, or among the small green alge. Among these a small lead-col- 
ored insect belonging to the family of “ spring-tails,” Anurida maritima, is 
the mostabundant. With it a spider, bdella, and several species of mites 
(Trombidium) are oftenfound. Several specimens of a “false scorpion, ” 
Chernes oblongus, were also found by Mr. Smith near low-water mark 
under stones. In the pools and on the rocks, among the green confervie 
and other sea-weeds, the active green larve of a two-winged fly, Chiron- 
omus oceanicus, is often found in abundance. This larva we have detected 
in the stomach of the “ tom-cod,” mixed with small crustacea. 
List of species inhabiting the rocky shores of the sounds and bays. 
In the following list the species living in these situations are brought 
together systematically, whether mentioned in the preceding pages or 
not. The lists are not to be regarded as complete, but include most 
of the species ordinarily met with. The references are to the pages of 
this report, where remarks upon the species may be found : 
ARTICULATA. 
Insects. 
Page. Page. 
Chironomus oceanicus ...... gol | Bdella marina... 105. dol 
Anurida maritima.......... 331 | Trombidium, severalspecies 331 
Chernes oblongus ..... {eee e COO «ll 
Crustacea. 
Page. Page 
Cancer irroratus -........- olin) Migera IGVIS: <-..- =... -.-= aoe ome 
Panopeus depressus .....-... ol | Melita nitida....-......2.. 314 
530) Re Re ee 312 | Amphithoé maculata.....-. 315 
PE PArrisiy .-..:.. Mi Aa fate eh nal Soler hE MEW AULA CEE ao, sie, <5. mje ctcumeee eit 315 
Carcinus granulatus....-.... ote, | Caprellag, Sp). 2--1-.inteiloisie 316 
Eupagurus pollicaris ....... 313 | Spheroma quadridentata .. 315 
Ey bongi¢arpus' 2.0320... 313 | Idotea irrorata ....... ..-- 316 
Homarus Americanus....... 315 | I. phosphorea....-..--...- 516 
Orchestia agilis............ 314 | Erichsonia filiformis...... - 316 
Hyale littoralis......:.....- 315 | Epelys montosus .......-... 
Calliopius lzviuseulus. ..... 315 | Jeera copiosa ........... ole 
Gammarus ornatus.......-.. 314 | Balanus balanoides.......- 504 
G. annulatus.............. . 514, Numerous small Entomos- 
re ua ainns.. 2. Saat CS 014!  traca. 
